Concentration of credit risk (Tables)

3 Months Ended

Sep. 30, 2025

Concentration Risk [Line Items]

Schedules of Concentration of Risk, by Risk Factor [Table Text Block]

Domestic and international sales from continuing operations are as follows:

(in thousands)	For the Three Months Ended September 30,
	2025				2024
Domestic	$	1,626	60.8	%	$	1,746	62.8	%
Foreign	1,049		39.2	%	1,035		37.2	%
Total	$	2,675	100.0	%	$	2,781	100.0	%